Machine for shaping shoe uppers



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- MACHINE FOR SHAPING SHOE 'UPPERS Filed April 1, 1932 13 Sheets-Sheetl3 Patented July 31, 1934 UNITED STATES PATENT OFFICE Eric A. Holmgren,Lynn, Mass., assignor to United Shoe Machinery Corporation, Paterson, N.J., a corporation of New Jersey Application April 1, 1932, Serial No.602,480

230 Claims.

This invention relates to machines for use in the manufacture of bootsand shoes (hereinafter referred to generically as shoes) for shaping theupper materials, and in some of its aspects more particularly tomachines for shaping the toe-end portions of uppers.

Machines have been provided heretofore for shaping or molding the toeends of uppers over a form from which each upper is removed after theupper-shaping operation to permit a last to be thereafter inserted inthe shoe, and in Letters Patent No. 1,853,126, granted on April 12,1932,

I disclosed an improved machine constructed for that purpose. It has,however, been proposed to 16 shape or last the toe end of each upperover the forepart of a divided last detached from the heel part, as astep in a novel method of making shoes disclosed and claimed in acopending application of A. F. Pym and A. R. Schoenky, Serial 20 No.603,278, filed on April 5, 1932. It is an object of the presentinvention, among others, to provide a machine so organized as to shapeor last the toe end of the upper over the detached forepart of a dividedlast, the forepart of the last being removable from the machine with theupper after the upper-shaping operation, and various novel features ofthe invention are to be recognized in the means disclosed for thispurpose, including means for supporting and controlling the forepart ofthe last in the upper-shaping operation. It is to be understood,however, that in many of its novel features the invention is not limitedin utility to a machine that shapes the upper over the detached forepartof a last, as distinguished, for example, from a machine that receivesand supports the whole last, and for this reason, as well as forconvenience, the term form is frequently used hereinafter todesignategenerally the element over which the upper is shaped. It is further tobe understood that the term forepart is used herein to distinguish thefront part or section of the divided last from the rear partirrespective of the particular location of the division between the twoparts.

As a part of its general organization for the purpose of shaping theupper over the detached forepart of a last as above described, themachine herein shown is provided with means constructed to receive andposition the forepart of the last and to cooperate with theupper-shaping instrumentalities in shaping the toe end of the upper, theconstruction illustrated comprising mechanism that connects with thedetached forepart at its rear end face to position and-support 55 it andis movable to present the toe end of the last in a location determinedbygage mechanism for the upper-shaping operation. In this operation theupper is conformed to the contour of the toe end of the last and itsmarginal portion is wiped inwardly over an insole on the last, theinsole shown being provided with a lip on its outer face against whichthe margin of the upper is wiped in upstanding position. The machineherein shown is further constructed to apply a binder around the toe forholding the upper against the lip and to drive fastenings at theopposite sides of the toe to fasten the binder inplace. After the upperhas thus been conformed to the toe end of the last and insole andfastened in lasted position, the forepart of the last, together with theupper and insole, is removed from the machine. While the invention isthus illustrated by reference to the manufacture of a shoe having aninsole provided with a lip, it is to be understood that in many of itsaspects it is not so limited, and in view of its general applicabilityto the manufacture of various kinds of shoes, the term sole isfrequently used hereinafter as a general term to designate the shoebottom part over which the marginal portion of the upper is shaped inthe upper-conforming or lasting operation.

Considered more generally, without particular reference to the characterof the form over which the upper is shaped, the invention presentsvari-- ous novel features relating especially to the workpositioningmeans. As illustrated, the form is mounted on a carrier or slide that ismovable inwardly to present the toe end of the form in a positiondetermined by gaging means and is locked automatically againstretractive movement, this slide being mounted on a spring-controlledsupport that is movable in a direction heightwise of the form, ordownwardly, in the upper-shaping operation, such downward movementresulting from pressure applied to the sole on the form. There isfurther provided means for locking the support against downwardmovementduring the presentation of the work and for thereafter unlocking it, andalso means for varying the height of the support for forms of differentsizes. Movable with the form carrier in presenting the work is means forpresenting the upper in proper position by the use of jig holes providedtherein, in a manner generally similar to the disclosure of theabove-mentioned Letters Patent No. 1,853,126.

With reference -more particularly to the positioning of the upper, theinvention provides novel means adjustable to determine the positions ofuppers of different sizes. In accordance with the disclosure of myabove-mentioned Letters Patent,

'moved toward the wipers.

the position 0! each upper is determined by jig pins that engage it inthe Jig holes provided therein and are themselves properly positioned byslots formed in the wipers that wipe the upper inwardly over the form.It is contemplated that in the use of the machine herein shown the samewipers will be used in operating on uppers of a number of differentsizes. Since, however, the distance of the tip seam from the end of theform should vary correspondingly with variations in size, there areprovided, as illustrated, gage members that cooperate with the wipers todeter mine the positions of the Jig pins and are adjustable to vary thepositions of the pins for uppers oi diiierent sizes.

In accordance with another feature of the invention, there is providedimproved means for clamping the marginal portion of the upper upon thewipers to control it in the upper-shaping operation. The means hereinshown for this purpose comprises a plurality of clamp members arrangedto engage the upper respectively in different locations along the wipersand carried by a support that is movable toward the plane of the wipersto apply them to the upper, the different members being pressed upon theupper through spring-controlled plungers associated therewith andcooperating with means whereby the pressures applied by the differentmembers may be independently varied. There is further provided novelmeans for maintaining each clamp member initially in a retractedposition along the plane of the wipers, to prevent interference withother parts of the machine, and for moving it forwardly as the supportfor the members is This means, as illustrated, comprises, for eachmember, a bell-crank lever whereby the member is retracted automaticallyin response to movement of the support away irom the wipers and isreleased to permit it to be moved forwardly by a spring as the supportis moved toward the wipers.

Formoving the form and its support heightwise in the upper-shapingoperation the machine is provided with a member arranged to engage thetoe end of the sole at the inner side of the lip so as to serve also asa support for the lip against the pressure of the wipers when the latterare operated to wipe the upper inwardly against the lip, this memberbeing so mounted as to permit it to tip about an axis extendingwidthwise of the form to seat itself evenly upon the sole. As illus-'trated, this member is controlled by a spring which tends to tip it inone direction and thus positions it for initial engagement with the soleclose to the end of the toe, the spring yielding as the member tips toseat itself upon the sole in the manner described. This affordsincreased insurance that the member will engage the sole properly,especially if the sole is provided with a lip, as shown.

As the form is moved heightwise in the uppersha-ping operation, theupper at the top of the iorepart is engaged by a shoe rest which moveswith the form and assists in holding the upper against displacement andalso in shaping it to the contour of the form. in order not to interferewith the presentation of the form and the upper in operating positionsin the manner hereinbefore described, the machine is further providedwith novel means for maintaining the shoe rest in a position at asubstantial distance from the form when the latter is presented and forthereafter moving it toward the form into upperclamping position. Asherein shown, the shoe rest is controlled by a spring which tends toraise it and against the resistance of which it is movable downwardlywith the form, and mechanism controlled by the means that depresses theform is provided for maintaining it initially in a somewhat depressedposition and for releasing it after the starting of the power operationof the machine to permit it to be moved upwardly against the upper byits spring. A further feature of the invention is to be recognized inthe construction of the shoe re'st, comprising a novel arrangement ofspring-controlled members relatively yieldable in conformity to thecontour of the form. In the construction shown a plurality of pairs ofspring-controlled plungers are arranged in a series extending widthwiseof the form to press on the upper along the tip seam and at the rearthereof, the different pairs of plungers being arranged to bear uponthin flexible plates that extend lengthwise oi the form and transmit thepressure of the plungers to the upper through a flexible cover thatengages the upper.

For controlling the upper in the upper-shaping operation and to assistin shaping it over the form, the machine includes grippers that grip themargin oi the upper at the opposite sides of the i'orepart, asillustrated both iorwardly and rearwardly oi the tip seam, and aremovable inwardly toward the term in response to the pull of the upperthereon, these grippers in the construction herein shown being mountedin guideways along which they are thus movable in straight paths. Toavoid any possibility of undue strain on the upper the inventionprovides means that acts independently of the upper to impart suchinward movements to the grippers at a predetermined time in theupper-shaping operation, as illustrated near the end of the downwardmovement of the form. In accordance with another teature also there isprovided means for imparting to the grippers movements lengthwise oi theform to assist in shaping the upper properly, the construction shownbeing such thatthe grippers are thus moved in directions away from thetoe end of the form to assist in avoiding excessive wrinlrling of thegathered margin of the upper about the toe and to locate the ends of thetip seam at the proper distances from the toe and of the form. 'Asillustrated, these movements of the grippers, and also their movementsinwardly toward the form as above described, are effected by mechanismsthat are operated by the downward movement of the shoe rest. In stillanother aspect, the invention provides upper-gripping means of novelconstruction for the purposes in view.

Another feature of the invention is to be recognized in improved meansfor clamping an end of an upper about a form, such clamping means in themachine herein shown being utilized to wipe the toe end of the upper.heightwise oi the form as the form is depressed. The structure disclosedcomprises an end band and novel means ior controlling it in various waysto apply pressure to the upper and to relax the pressure. For the latterpurpose there are provided wedge bars that are movable lengthwise of theform and serve to retract the opposite end portions of the band irom theform, together with devices controlled by the wedge bars for alsorelaxing the pressure of other portions of the band on the upper.

The machine herein shown, in accordance with a further novel feature, isconstructed to apply about the toe an upper-holding binder havingflattened end portions adapted to be pierced by fastenings driven tofasten the binder in place,

carry members arranged to press yieldingly on the flattened ends of thebinder to assist in holding it in the groove.

In accordance with another feature of the invention there is providednovel means for presenting each binder preliminarily in position to beapplied to the upper in the operation of the machine. This means, asillustrated, comprises a device constructed for use by the operator topresent the binder in the groove in the wipers and having membersarranged to guide the binder into the groove and other members movableto force the binderinto the proper position. The binder-guiding membersin the construction shown are relatively movable to positions determinedby the contour of the edges of the wipers as the device is presented tothe wipers, so as to adapt the device for use with wipers that aredifferently formed to operate on the uppers of shoes of various stylesand sizes, and are arranged to guide both the intermediate andendportions of the binder. The members that act on the binder to force italong the guiding means into the required position comprise a member forengaging the intermediate portion of the binder and other members forengaging portions of the binder nearer the ends thereof. These severalmembers are mounted for advancing movements together under control of ahandle by which the operator manipulates the device, and the membersthat engage the binder at or near its ends are also movable indirections away from 'each other to force the end portions of the binderinto the required positions.

There are further novel features in the combination of upper-shaping andbinder-applying means and means for inserting fastenings to fasten thebinder, and also in the combination of upper-shaping means andfastening-inserting means irrespective of the presence of the binder. Asillustrated,'a plurality of fastening-inserting devices, each includingmeans for holding a fastening and a driver for driving the fastening,are arranged to act at each of the opposite sides of the toe and are allmovable as a unit heightwise of the form, together with spring meansthat operates the drivers, prior to the fastening-inserting operation,the fastenings being supplied by separating means relatively to whichthe devices are thusmovable. By such movement the difierent devices arecarried into engagement with the outer faces of the wipers, and prior tothe insertion of the fastenings they are also moved inwardly along thewipers to positions determined by contact with the member hereinbeforereferred to as engaging the sole at the inner side of the lip. To permitthe different devices at. the opposite sides of the toe to assume theproper relative positions, they are yieldingly movable relatively to oneanother both heightwise and widthwise of the form. For imparting to thedevices their inward movements, and for also actuating thedriver-operating means, there are provided, in the construction shown,cam-operated mechanisms relatively to which the devices are movable asdescribed in directions heightwise of the form, the construction beingsuch that these mechanisms maintain at .all times their operativerelations to the parts that they control notwithstanding such movementsheightwise of the form. The drivers that drive the fastenings at theopposite sides are connected to members that are movable to retract themagainst the resistance of springs that act on the members to impart tothe drivers their operative movements; and novel means is furtherprovided for imparting to these members driver-retracting movements inpredetermined relation to each other and for yet rendering themindependent of each other in their driver-operating movements so thatthe limits of the movements of the drivers at each side may. beindependently varied and determined. As herein shown the fasteningsutilized are tacks, but the invention is not limited to the use offastenings of that particular character.

In accordance with still another novel feature of the invention thefastening-inserting mechanism is operated and controlled through aclutch that is automatically actuated separately from another clutchthrough which the upper-shaping means is operated, this means comingautomatically to. a stop with the wipers in upper-holding position topermit the driving of the fastenings.

The above and other features of the invention, including various noveldetails of construction and combinations of parts, will now be moreparticularly described by reference to the accompanying drawings andpointed out in the claims.

In the drawings,

Fig. 1 is a view in front elevation of a machine in which the inventionis embodied, with certain parts broken away;

Fig. 2 shows the machine partly in left hand side elevation and partlyin section;

Fig. 3 shows partly in elevation and partly in section portions of thestructure included in the left hand half of the machine, as viewed fromthe right hand side thereof;

Fig. is a perspective view illustrating more fully how the forepart of alast is mounted on the work support;

Fig. 5 isa view on an enlarged scale showing portions of the machine,partly in front elevation and partly in section, as they appear early inthe cycle of operations;

Fig. 6 is a plan view of the left hand half of the machine with thefastening-inserting mechanism and certain other parts removed;

Fig. 7 is a view in side elevation of a portion of the structure shownin Fig. 6;

Fig. 8 shows in right hand side elevation at portion of theshoe-depressing arm and parts associated therewith;

Fig. 9 is a plan view showing the wipers and parts associated therewith,portions of the structure being broken away;

Fig. 10 is a plan view of the toe band and its controlling mechanism,with parts broken away;

Fig. 10a is a plan view illustrating in greater detail the constructionof a portion of the toeband-controlling mechanism;

Fig. 11 is a plan view of one of the grippers;

Fig. 12 shows the gripper in front elevation as it appears whengrippingthe upper;

Fig. 13 shows more fully in vertical section the construction of thegripper and of parts of the machine closely associated therewith;

Fig. '14 is a plan view of the slide on which the gripper is mounted;

Fig. 15 shows the left hand half of the machine in rear elevation, withparts broken away;

Fig. 16 is a detail view in elevation of a portion of the operatingmechanism and of the means for controlling the main clutch;

Fig. 1'7 shows the main clutch and portions of the mechanism forcontrolling it; I

Fig. 18 is a section on the line XVIHXVUI of Fig. 15, showing the clutchthrough which the fastening-inserting mechanism is operated;

Fig. 19 is a view, partly in right hand side elevation and partly insection, of a portion of the means for operating and controlling thefastentrig-inserting mechanism in the left hand half of the machine;

Fig- 20 shows in greater detail a portion of the structure shown in Fig.19 as viewed from a diner-- out direction;

' Fig. 21 is a view partly in front elevation and pafily in section,showing a portion of the fastenhag-inserting mechanism;

' Fig. 22 is a view of substantially the same charactor as Fig. 21, butshowing parts farther to the rear than those shown in Fig. 21;

Fig. 23 is a plan view of the binder-presenting device as it appears inits initial operative relation to the wipers;

Fig. 24 is a side view of the binder-presenting device in its relationto the wipers, "lie of the wipers being shown in section;

Fig. 25 is an inverted plan view of a portion of the binder-presentingdevice and the wipers, with the parts in the same positions as in Fig.23;

Fig. 26 is a view similar to Fig. 25, but showing 9. the parts aspositioned at the end of the binderpresenting operation;

Fig. 2? is a section on the line XXHI-XXVII of Fig. 25;

Fig. 2c is a section on the line XMII-XXWIH of Fig. 23;

Fig. 29 is section on the line XEQX-X'ZHX oi Fig. 26 with the partsright side up instead of inverted;

Fig. so is a perspective view illustrating the positions of certainparts of the machine when the work is presented in position to beoperated upon;

Fig. 31 is a plan view showing a portion of one of the wipers and of thegage member associated therewith for determining adjustably the positionoi the upper-presenting means;

Figs. 32 to 37, inclusive, illustrate the relation of parts of themachine to the work at different times in the cycle oi operations; and

Fig. 33 is a perspective view of the toe portion of a shoe after it hasbeen operated upon by the machine.

In general similarity to the machine disclosed in the above-mentionedLetters Patent No. l,853,l26, the machine herein shown is a twin machinehaving two sets of instrumentalities with their operating andcontrolling mechanisms for operating respectively on the uppers of rightand left shoes, each set being substantially independent of the other asfar as its operation and control are concerned. For an understanding or"the presentinvention reference accordingly need be made, for the mostpart, only to one of the sets of instrunientalities and the parts of themachine associated therewith, the following description being confinedmainly to the structure of the left hand half oi the twin machine.

The machine herein shown is specially constructed to receive and supportthe forepart section of a divided last of thecharacter disclosedinLetters Patent No. 1,856,127, granted on May 3, 1932 upon an applicationof G. P. S. Cross. As therein disclosed, and as shown-in Figs. 3 and 4,the forepart of the last has inserted in its rear end face a plateprovided with a slot 52 and secured in place by two screws 54 and 56,the head of the screw 54 being seated in a circular depression 58 in theplate and the head of the screw 56 engaging an inwardly bent portion ofthe plate so that it is spaced inwardly away from the slot 52. Inaccordance with the disclosure oi the above-mom tioned Cross LettersPatent this plate on the rear end of the iorepart section oi the last isa part of the bonding means for fastening the two parts of the lasttogether and is arranged to 00 operate for that purpose with mechanismcarried by the heel part of the last. It is by use oi. similar mechanismcooperating with the plate 50 on the iorepart of the last that thelatter is post:

tioned and supported in the machine herein shown. This mechanismcomprises a plate so which is fastened by screws 62 and or to a smallblock 66 mounted as hereinafter described on a work carrier 68. Theplate dollars an upraised circular boss to against which the head of thescrew 62 bears, this boss being arranged to enter the depression 58 inthe plate 52 to assist in posi= tioning the forepart oi the last. Thehead oi the screw fi l is arranged to seat against outturned portions'72 of the plate so which are positioned at the opposite sides of thescrew and are or sulo= stantially the same width as the slot 52 in theplate 50, the head of the screw lacing wider than this slot. Projectingoutwardly through an open ing in the plate is a latch is; which issomewhat loosely mounted for rocking movements in. a recess in the blockso and is arranged to project through the slot 52 of the plate 50 and tohook over the inner face of this plate as illrntrated in Fig. 3, thelatch having also a projection which engages the inner face or the plateso. A spring it tends to swing the projecting end oi? the latch '14 inan upward direction.

In mounting the forepart oil the last on the support the operatorpresents it with the lower end of the slot 52 just alcove the screw orand the projecting portions 72 of the plate so and then slides itdownwardly along the plate fill until the latch It snaps over the innerface of the plate 50 and the boss to is seated in the depres= sion 58,as illustrated in Fig. 3. The forepart oi the last is then locked insubstantially fixed relation to the bloclr 66 by the latch 34, the screwlid, and the boss 70. For releasing the forepart of the last when it isdesired to remove the worir from the machine there is provided a plungeri8 slidingly mounted in the carrier 58 and arranged to engage the innerend of the latch 74 and to rock the latch against the resistance oi itsspring 76 when the plunger i8 is moved upwardly against the resistanceof a spring 80 which tends to move it downwardly. For imparting suchupward movement to the plunger 78 there is mounted in the carrier 68 arock shaft 82 provided with a shoulder against which the lower end ofthe plunger rests,

this rock shaft having fast on one end a crank arm 84 movable by theoperator to eiiect the release of the forepart of the last.

In view of the differences in the contours of different lasts it isconsidered desirable to determine the lateral position of the forepartof each its that the block has a laterally curved inner face 86 whichseats on a. correspondingly curved i'ace of chine.

movements. As shown in Figs. 3 and 4, the block is further guided by aprojection 88 on its upper end mounted to turn in a bearing formed in aplate 90 that is fast on thefcarrier 68, and also by a pin 92 which isdetachably mounted in the carrier and projects into a recess in thelower end of the block. To limit the rocking movements of the block 66it is provided with a rib 94 which extends into a slot in the carrier 68and permits only limited lateral movement of the forepart of the last.The inner end of the latch 74 projects into a recess in the carrier 68which is large enough to permit such rocking movements as the block 66may receive without disturbing the operative relation of the latch tothe plunger 78.

The carrier 68 is secured to a slide 96 horizontally movable forwardlyand rearwardly in guideways formed in a horizontally extending head 98on a slide 100 which is vertically movable in a bracket 102 on the frameof the me.-

The slide 100 has fast on its lower end a plate 104 which is connectedby a spring 106 to a pin 108 mounted on a cover plate 110 on the frontof the bracket 102. The spring 106 thus tends to, raise the slide 100and the parts-supported thereon, the limit of upward movement of theslide being determined by nuts 112 on an eye bolt 114 which is supportedas hereinafter described and extends downward loosely through an openingin the plate 104, the lower nut being arranged for limiting engagementwith the upper face of the plate. By its horizontal movement in the head98 the slide 96 moves the carrier 68 from outer work-receiving position,in which it is shown in Fig. 3, inwardly to present the work in positionfor the machine to operate thereon. The slide 98 is thus movable by theoperator who pushes it inwardly to present the work and later pulls itoutwardly to withdraw the work from operating position. The inwardmovement of the slide and the parts supported thereon is limited byengagement of the toe-end face of the forepart of the last with a stopor gage 116 which is mounted on a vertically swinging arm 118 whereby,as hereinafter described, downward movement is imparted to the forepartof the last in the upper-shaping operation. Thegage 116 is mounted forupward and downward movements in a guideway in the arm 118, its downwardmovement in the arm being limited by a member 120 (Figs. 5 and 8) whichis clamped on its upper end and arranged to engage the arm. To limitdownward movement of the gage 116 when the arm 118 is swung downwardly,so that the toe end of the last will be carried away from the gage topermit the shaping of the upper over it, the member 120 is provided witha projection 122 arranged to engage a horizontally extending arm 1240f abell-crank lever which is pivoted at 126 on a plate 128 fast on abracket 129 mounted on a top casting 130 (Fig. 6) of the frame of themachine, the bracket 129 being one of two brackets whereby the arm 118is guided. The other arm 131 of the bell-crank lever is arranged toengage a shoulder on the plate 128 to hold the arm 124' against downwardmovement. A spring 132 holds the bell-crank lever yieldingly in theposition thus determined. When the arm 118 is swung upwardly a screw 134carried by a projection 136 on the member 120 is arranged to engage thelower face of the arm 124 to insure that the gage member 116 will bereturned to its lower limit of movement in the arm, the spring 132 beingstrong enough for this purpose. The gage member 116 has a slot 138 (Fig.3) in one side thereof into which projects the end of a screw 140carried by the arm 118 so as to prevent the gage member from turning.

For centralizing the forepart of the last laterally there are providedtwo gages 142 (Figs. 3 and 5) arranged to contact with the opposite sidefaces of the toe end of the last, these gages being formed on the lowerends of rods 144 which aremovable vertically in bearings in the-frontends of horizontally swinging arms 146 (see also Fig. 6). Mounted oneach rod 144 is a spring 148 which bears on a collar 150 on the rod andthus tends to move the rod downwardly, the limit of its downwardmovement being determined by a clamp 152 on its upper end in engagementwith the arm 146. Projecting downwardly from each clamp 152 is a plate154 provided with a slot into which projects a pin 156 on the arm 146 toprevent turning movement of the rod 144. Each of the arms 146 ispivotally mounted at 158 (Fig. 6) on a bracket 160 fast on a'cover plate161 (Fig. 5) positioned over parts hereinafter described. A spring 162is connected at its opposite ends to the arms 146 and tends to swingthem toward each other. The two arms are connected to- 100 gether forequal movements toward or from each other by arms 164 also pivotallymounted at 158 on the brackets 160 and connected together by gear teethon their inner ends, the arms 164 being connected respectively to thedifferent arms 146 by clamp screws 166 which are threaded in the arms164 and extend through slots formed in lateral projections 167 of thearms 146. It will be understood that by means of these slot and screwconnections each arm 146 may be adjusted independently of the other toposition its gage 142 in proper relation to the toe-lastinginstrumentalities. A screw 168 threaded in one of the brackets 160 andengaging one of the arms 164 limits adjustably the movements of the twoarms 146 under influence ofthe spring 162. When the forepart of the lastis forced downwardly by the arm 118 it is carried away from the gages142(, and if the shoe contacts with these gages in its I return movementupwardly after the lasting operation the gages are moved upwardly by itagainst the resistance of the springs 148 without damage to the machine.

It is desirable that after the work support slide 96 has been movedinwardly to the position determined by the gage 116 it shall be heldagainst outward return movement during the operation of the machine uponthe work. For this purpose I there is set into the head 98 on which theslide 96 is mounted a plate 169 (Fig. 3) having ratchet teeth thereon,and the slide 96 carries five pawls 1'70, one of which is shown in Fig.3, having projections 172 arranged to engage the ratchet teeth. Theseprojections on the several pawls are arranged in staggered relation toone another for greater precision in looking the slide 96 exactly in theposition to which it is moved; The pawls 170 have inner curved endsseated in similarly curved recesses in a block 1'74 that is fastened tothe slide 96, and they are confined in these recesses by a block 176which is fast on the slide and is arranged close to their outer ends,this block being adjustable by screws 1'18 in the head 98 and held inadjusted position by clamping screws 180. Associated with each pawl is aspring 182 which tends to swing it downwardly to position its projection1'72 in operative relation to the ratchet teeth. To permit the slide 96to be moved outw'ardly by the operator after the completion of 5 res;

the toe-lasting operation there is provided a rocking member 184 whichis mounted to turn on a rod 186 fast in a lug 185 on the slide 96 andcarries a plurality of rods 188 which extend downward loosely throughopenings in the slide 96 and have on their lower ends heads whichunderlie portions of the respective pawls 170. The rods 188 areseparately adjustable as to height by nuts 190 whereby they aresupported on a cross pin 192 on the member 184. Projecting laterallyfrom the member 184 is a handle 194 (Fig. 6-) whereby the member may berocked to lift the pawls from the ratchet teeth, this handle servingalso as means by which the operator moves the-slide 96 in bothdirections.

In order to prevent tacks or other articles from falling. on the ratchetplate 169 and interfering with the proper action of the pawls 170, thereis provided a thin plate 196 slidably mounted in the head 98 under theslide 96 and arranged to act as a shutter to cover the ratchet platewhen the work support slide 96 is in its outer position. The plate 196has an opening through it along a considerable portion of its length toreceive the pawls 170, and into this opening projects the block 174which acts by engagement with an edge of the plate to slide the latteraway from over the ratchet teeth when the slide 26 is moved inwardly topresent the work. The plate 196 is returned into position to cover theratchet teeth by a. spring 198 mounted in a recess in the head 98 andarranged to hear at one end on the ratchet plate 169 and at its otherend on a shoulder formed on the plate 196. The spring 198 is mounted ona rod 200 which is screwed at its inner end into the plate 168 and hason its outer end a head 202 which limits outward movement of the plate196.

The vertically movable work support slide 100, as previously stated, isupheld yieldingly by a spring 106. It is desirable, however, that whenthe operator is mounting the work on the work support the latter be heldfirmly against downward yield and also that it be so held during themovement of the slide 96 to present the work in position to be operatedupon so as to insure that the toe-end face of the last will be highenough to contact with the gage 116. The machine is accordingly providedwith means for holding the work support locked positively againstdownward movement prior to the starting of the power operation of themachine. For this purpose there is fast on the head 98 of the slide 100an arm 204 (Fig. 3) on which is fastened a plate 206 provided with atooth 208 arranged to engage upwardly directed ratchet teeth formed on aplate 210 which is fast on a lever arm 212. The arm 212 at its lower endis pivotally mounted on a pin 214 whereby it is connected to one arm ofa bell-crank lever 216 pivoted at 218 on the bracket 102 and controlledas hereinafter described. The arm 212 is controlled by a link 220pivotally connected at one end by a pin 222 to the lower end of an arm.224 which is mounted for swinging movement on a pin 226 fast on thebracket 102, the pin 222 extending into a vertically elongated slot 228in the arm 212. A spring 230 connected to the pin 222 and to the coverplate 110 tends to move the link 220 toward the left (Fig. 3) and thusthrough the pin 222 to swing the arm 212 in the same direction. In thismanner the arm-212 is held yield ingly in position for one or another ofthe teeth of the ratchet plate 210 to engage the tooth 208 and thus tolock the slide 106 against downward movement. It will be observed thatthe pin 226 extends through a slot 232 in the arm 212, the slot beingwider than the pin so as to permit swinging movements of the arm. At itsfront end the link 220 is supported on a shaft 234 which is mounted intwo arms 236 (Figs. 2 and 3) projecting forwardly from the cover plate110, the link being provided with a slot 238 whereby it is permitted tomove lengthwise relatively to the shaft.

For unlocking the slide to permit it to be moved downwardly with thework in the opera-,- tion of the machine there is provided mechanism formoving the link 220 toward the right (Fig. 3) to swing the arm 212 andits ratchet plate 210 away from the tooth 208.- This mech? anismcomprises a bar 240 guided for upward and downward movements by a pin242 which is fast on the cover plate 110 and projects into a slot 244 inthe bar, the latter being provided with a cam face 246 arranged toengage a roll 248 on the link 220 to move the link to the right when thebar is moved downwardly. The bar 240 is connected by screws 250 toanother bar 252 (Figs. 1 and 2) which is pivotally connected at its low=er end to a treadle 254 pivoted at 256 to a brack-= et 257 fast on theframe of the machine and utilized as hereinafter described to start thepow er operation of the machine. The treadle 25s is controlled by a coilspring 258 (Fig. 1) which tends to swing its front end upwardly and maintains it initially in a position determined by 2. lug 260 thereon (Fig.2) in engagement with the bracket 257. With the parts in these positionsthe bar 240 (Fig. 3) is raised far enough to permit the engagement ofthe ratchet plate 216 with the tooth 208. When the treadle is depressedto start the machine the ratchet plate is swung away from the tooth torelease the slide 100 as above described.

In order to prevent the arm 212 from being returned into position tolock the slide 100 throughout the operation of the machine, after thetreadle 254 has been returned to starting position, there is provided alatch 262 (Fig. 3) ar= ranged to cooperate with a plate 264 which isfast on the link 220, the latch having a notch in its end to provide ashoulder 266 for engagement with an end face of the plate. The latch 262is fast on the shaft 234, which is mounted to turn in bearings in thearms 236, and also fast on the shaft is an arm 268 controlled by aspring 270 which tends to swing the latch 262 in a downward direction.When the link 220 is moved toward the right by depression of thestarting treadle, as above described, the plate 264 on the link isaccordingly carried into position to permit the latch 262 to be swungdownwardly far enough to hold'the link against return movement byengagement of the shoulder 266 on the latch with the end face of theplate. For releasing the link 220 to permit the arm 212 again to beswung into locking position by the spring 230 there is provided an am272 which is fast on theshaft 234 and extends upwardly into position tobe en gaged at its upper end by an arm 274 that projects downwardly froma slide 2'76, this slide being supported for horizontal movements ongibs 2'78 that are fast on the head 98. At its for ward end the slide276 is provided with an up turned lug 280 arranged to be engaged by alug 282 on the work support slide 96 when the operator moves the latteroutwardly to withdraw the work from the machine. In this manner aforward movement is imparted to the slide 276, whereby the arm 274 actson the arm 2'72 to turn the shaft 234 and thus to lift the latch 262 asabove described. The slide 2'76 is provided lid lid

with a slot 284 into which projects a pin 286 on the head 98' to limitmovement of the slide 276 and accordingly through the lug 280 to limitthe outward movement of the work support slide 96. It will be notedthat, as the parts are shown in Fig. 3, the pin 286 occupies anintermediate position in the slot 284 because of the action of thespring-controlled arm 2'72.and of other yieldingly controlled partshereinafter described upon the depending arm 2'74, the latch 262 underthe influence of the spring 2'70 resting upon the top of the plate 264.

The eye-bolt 114 carrying the nuts 112 which by engagement with theplate 104 limit upward movement of the slide is hung on the pin 214which connects the arm 212 to the bell-crank lever 216. When theforeparts of lasts of different sizes are mounted on the work supporttheir bottom faces are presented at different heights relatively to thework support. It is desirable, however, for proper cooperation with thegage 116, that the bottom faces of different last foreparts be presentedat substantially the same height in the machine regardless of theirsizes. The machine is accordingly provided with means that acts throughthe bell-crank lever 216 to move the pin 214 upwardly or downwardly andthus to vary the position of the eye-bolt 114 and the nuts 112 todetermine the proper height of the slide 100 for each size of last. Thismeans comprises a link 288 connecting the upwardly extending arm of thebell-crank lever to an arm 290 (Figs. 1 and 9) which is fast on avertical shaft 292 mounted to turn in a bearing formed in a fixedbracket 294 supported by a cross-rod 296 on the frame. The shaft 292extends upwardly through a bearing in the plate 161 and also a bearingformed in a bracket 298 which is fast on the plate 161. Fast on theupper end of the shaft, in a recess in the bracket 298, is a gear sector300 the teeth of. which are engaged by a pinion 302 mounted on a shortshaft 304. The shaft 304 is mounted to turn in a bearing in the bracket298 and has fast thereon a crank arm 306 whereby the operator. isenabled to turn it and thus to adjust the height of the work support inthe manner described, The crank arm 306 carries a pointer 308 (Fig. 6)arranged to cooperate with a fixedscale 310 bearing size indications toindicate when the work support is properly adjusted for each size oflast. For holding the parts in adjusted positions the arm 306 carries aspring-pressed plunger 312 (Fig. 9) having a ll-shaped end arranged toenter recesses between teeth formed on a plate 314which is fast on thebracket 298.

It is contemplated that in the use of the machine in the manner hereinillustrated the upper will have been previously assembled with an insoleand fastened thereto at the heel end and the insole fastened by tacks inproper relation to the forepart of the last, as illustrated in Figs. 3and 30. Accordingly when the forepart of the last is mounted on the worksupport in the manner hereinbefore described the insole is fastened toit and the upper and insole unit are presented to the machine with theforepart of the last when the work support is moved inwardly to carrythe toe end of the last into contact with the gage 116. For positioningthe toe end of the upper in proper relation to the upper-shaping orlasting instrumentalities there is provided a portable presenter ofsubstantially the same construction as disclosed in thepreviously-mentioned Letters Patent No. 1,853,126. I This presentercomprises two rods 316 (Fig. 30) each mounted at one end on a cross bar318 to which is secured a handle 320, and on the other ends of the rods316 are secured blocks 322 provided with extensions on which are mountedjig pins 324 arranged to enter jig holes previously provided in themargin of the upper at the opposite sides'of the toe substantially attheends of the tip seam. The presenter includes a plate 326 mounted on the.cross bar 318 and arranged to support the heel end of the-upper. Tolocate the toe end of the upper in proper position the jig pins 324 arearranged to cooperate with toe-embracing wipers 328 whereby, ashereinafter described, the marginal portion of the upper around the toeis wiped inwardly into lasted relation to a lip on the insole, thewipers .being provided with slots 330 (Fig. 31) to receive the jig pins.Preferably the jig pins will be inserted in the holesin the upper beforethe work is presented to the machine, and the operator will accordinglysupport the-presenter in one hand while he positions the forepart of thelast on the work support with the other hand. When the operatorthereafter moves the work support slide 96 inwardly to 100 bring the toeend of the last into contact with the gage 116, he continues to controlthe presenter and thereby guides the jig pins into the slots in thewipers. In thus presenting the work the margin of the upper around thetee is positioned outspread over the upper faces of the wipers uponwhich it is clamped in a manner hereinafter described. in the operationof the machine. The jig pins are provided with ball-shaped ends 332which are of a little larger diameter than no the holesin the upper, sothat the pins and portions of the presenter adjacent thereto will besupported by the upper after the work has been presented and thus permitthe operator to release the presenter, the machine being furtherprovided with a bracket 33% which is fast. on the slide 96 and isarranged to support portions of the presenter at the opposite endthereof from the jig pins.

It has been found to be practicable to use theme same wipers 328 forlasting the toes of shoes of a number of different sizes instead of.using a different pair of wipers for every difierent size. Obviously,however, the tip seam of a compara-= tively largeupper should be locatedfarther from 3% the toe-end face of the last than the tip seam of asmaller upper. The machine is accordingly further provided with meansarranged to cooperate with the slots 330 in the wipers to determinediiferent positions for the jig pins 321 in 33g presenting the uppers ofshoes of difierent sizes. This means comprises plates 336 (Figs. 9 and31) one for each wiper, arranged to lie close to the upper faces of thewipers and provided with slots 338 arranged to receive the jig pins 324and 1 to cooperate with the slots 330 in the wipers to determine thepositions of these pins, as illustrated in Fig. 31. That is, each plate336 may be so positioned as partly to cover theslot 330 in the wiperthat is beneath it," so that the jig pin is 1% engaged on one side by anedge of the wiper and on the other side by an edge of the plate 336 andis thus prevented from being moved as far into the slot 330 as would bepossible in the absence of the plate 336. The plates 336 are adjustableto position them in the proper relation to the slots 330 in the wipersfor the purposes in view in operating on the uppers of shoes ofdifierent sizes, so as to determine the proper length of tip for eachsize. Each plate 336, as illustrated in Figs. aw

